03-18-2009, 07:24 PM
For what it's worth, here's a link to a photo of my DeLuxe 20 with original finish, showing the toning. I can't say if the regular 20 panel is done the same way, but I suspect it is.
[Image: http://antiqueradios.com/gallery/d/47796-2/3philc20.jpg]
http://antiqueradios.com/gallery/d/47796-2/3philc20.jpg
[Image: http://antiqueradios.com/gallery/d/47796-2/3philc20.jpg]
http://antiqueradios.com/gallery/d/47796-2/3philc20.jpg